Joel 2:1-2; Joel 2:12-17

1Blow the trumpet in Zion; sound the alarm on my holy mountain! Let all the inhabitants of the land tremble, for the day of the Lord is coming, it is near—2a day of darkness and gloom, a day of clouds and thick darkness! Like blackness spread upon the mountains a great and powerful army comes; their like has never been from of old, nor will be again after them in ages to come.

12Yet even now, says the Lord, return to me with all your heart, with fasting, with weeping, and with mourning;13rend your hearts and not your clothing. Return to the Lord, your God, for he is gracious and merciful, slow to anger, and abounding in steadfast love, and relents from punishing.14Who knows whether he will not turn and relent, and leave a blessing behind him, a grain offering and a drink offering for the Lord, your God?15Blow the trumpet in Zion; sanctify a fast; call a solemn assembly;16gather the people. Sanctify the congregation; assemble the aged; gather the children, even infants at the breast. Let the bridegroom leave his room, and the bride her canopy.17Between the vestibule and the altar let the priests, the ministers of the Lord, weep. Let them say, "Spare your people, O Lord, and do not make your heritage a mockery, a byword among the nations. Why should it be said among the peoples, "Where is their God?' "